Why not aim for Mecca as well. Too bad these are not big enough to level the cities.
They would not attack or destroy Mecca -- in fact they abhor the Saudis for the Saudis have destroyed most of Mecca, tearing down the tombs of Mohammaed's wives and companions -- building toilets on them in fact
Zaidis, unlike most Sunnis (with the exception of the practicially extinct sect of Mu'tazila) belive that the Qu'ran was created
That is important -- we Westerners don't understand why Mohammadens go so gaga about the burning of a Q -- its because to them the Q was not created, was not written down but pre-existed before creation.
In Islam it is not Mohammad = Jesus, rather the Quran = Jesus. The Q is their "Word of God" dictated and writetn word for word by Al'illah - it is analogous in their belief system (to some extent) with Jesus in ours - with the exception that it is not "God" but something uncreated (which not even "injil" are )